baber/WOPTO huggingface dataset:
Patent GB-1193080-A (GB)
Title: Floor Coverings.
Inventor: BREENS LEON FRANK HADDON
IPC: D06N7/00
Filed: 1966-10-28
Abstract: 1,193,080. Treating woven floor coverings. COURTAULDS Ltd. 27 Oct., 1967 [28 Oct., 1966], No. 48423/66. Heading D1P. A woven floor covering having improved wear resistance is produced by treating a woven floor covering which does not have a pile and is based at least in part on natural fibres with an aqueous solution, suspension or emulsion of a resin which is a synthetic polymeric material obtained by polymersing one or more polymerisable unsaturated compounds so that the covering retains at least 5% of its weight of the resin and then remaining the water. The treating composition may be applied to the floor covering by spraying, padding, dipping or foaming from a lick roller. The resin may be one which may or may not require curing after application, e.g. polyvinyl acetate, polyvinyl alcohol, polvinyl chloride or a self-cross linking acrylic resin. The floor covering may comprise jute or sisal fibres alone or in admixture with acrylic or viscose rayon fibres.
Patent GB-1183650-A (GB)
Title: Pattern Recognition.
IPC: G06V10/88
Filed: 1968-10-16
Abstract: 1,183,650. Pattern recognition; square root, exponential circuits. INTERNATIONAL BUSINESS MACHINES CORP. 16 Oct., 1968 [13 Nov., 1967], No. 49072/68. Headings G4G and G4R. [Also in Division G2] In pattern recognition apparatus, the unknown pattern is correlated with known patterns, signals from each correlation being raised as exponents to a constant to give signals which are summed for each known pattern separately, the largest sum being detected to identify the unknown pattern. An unknown pattern is correlated optically with masks of known patterns, the light from each correlation being detected by a respective 3 x 3 matrix of photocells. The outputs of each matrix are fed through non-linear diodes to a respective summing network. The outputs of the summing networks are compared, the largest identifying the pattern. Each non-linear diode produces an output equal to a constant (e.g. the base of natural logarithms) raised to its input as exponent. The masks of known patterns may be in hologram form in which case each photocell output is square-rooted (to get from intensity to amplitude) before being raised as exponent to the constant. Fig. 5 shows a circuit for this, comprising a photo-detecting junction 62B (input), an insulated-gate field-effect transistor 78 for the square-rooting, and a non- linear diode 76 for the exponentiation.
Patent GB-1281037-A (GB)
Title: Ferro-electric substance
IPC: C04B35/497
Filed: 1969-10-07
Abstract: 1281037 Ferro-electrics INTERNATIONAL BUSINESS MACHINES CORP 7 Oct 1969 [22 Oct 1968] 49207/69 Heading C1J [Also in Division C7] A ferro-electric substance has the formula where 0#x#0À8; 0#y#0À3; 0#z#0À8 and Pb, Fe and Nb are always present, providing that x, y and z do not equal 0 simultaneously and x+z does not equal 1 when y=O. The substances may be made by firing mixtures of PbO, Bi 2 O 3 , Fe 2 O 3 , Nb 2 O 5  ,ZrO 2  and La 2 O 3  for about 3 hours at 850-950‹ C. and sintering compacted shapes of the resulting powder at 950-1250‹ C. Sintering may be carried out in a closed Pt boat containing PbTiO 3  and LiF (50:1) to provide a beneficial atmosphere. Alternatively, trace amounts of LiF may be incorporated as a sintering aid. The products are coated by cathode sputtering, electron beam evaporation, chemical spray deposition or centrifuge deposition on to substrates of metal or metallized glass or ceramic to form films ¢ micron to several mils thick (see Division C7). Examples describe the preparation of ferro-electrics containing (1) all 6 metals; (2) all 6 metals apart from one of Bi, La and Zr.
Patent GB-982640-A (GB)
Title: Improvements in telescopic umbrellas
IPC: A45B19/04
Filed: 1963-12-13
Abstract: 982,640. Telescopic umbrellas. F. BREMSHEY, and W. FULLING. Dec. 13, 1963, No. 49375/63. Addition to 804,619. Heading A4P. In the umbrella frame as disclosed in the parent Specification a catch 22, pivotally mounted in the auxiliary runner 15 to engage under the action of the spring 25, an a slot 29 to temporarily arrest movement of the auxiliary runner and prevent telescoping of the rib parts, is removed from the slot by engagement of a cam surface on the head 18 of an auxiliary strut 12 with a cam surface 27 on the catch. One of the auxiliary struts pivoted by a wire 16 engaging a groove 17 is aligned with the catch 22 which is pivoted on a pin 24 in a slot 20 in the auxiliary runner, the spring 25 being bent around the pin 24 and pressing against a wall 21 closing the slot to urge the nose 23 of the catch into engagement with the slot 29. When the struts 12 are splayed by movement of the main runner and ribs 9, the head 18 engages the cam surface 27 and the catch is released for full opening of the canopy. In closing the canopy the sloping surface 30 of the nose 23 engages the edge of the slot 29 to prevent engagement of the catch with the slot and impedence of the telescoping of the stem is prevented by the presence of the stem part 2 inside the stem part 1 and by the engagement of a cam surface on the strut 12 near the head 18 with a cam surface 28 on the catch as shown in Fig. 6. A guide groove may be provided in the stick to ensure entry of the nose 23 into the slot 29 or the stick is of polygonal section one of the side surfaces forming the guide.
Patent GB-1122338-A (GB)
Title: Well conduit tool diverter
IPC: E21B23/12
Filed: 1966-11-03
Abstract: 1,122,338. Wells &c. ROCKWELL MFG. CO. 3 Nov., 1966 [3 Nov., 1965], No. 49383/ 66. Heading E1F. A tool diverter for well head conduits, particularly of underwater petroleum wells, comprises a hinged flap 20 which is movable selectively to direct the passage of tools from an approach conduit 12, into one or the other of two "Y" branch conduits 10, (11) Fig. 2 (not shown) and to block the other branch. The flap is operated from a remote position by fluid pressure applied to one end of an actuating piston (47) Fig. 3 (not shown), acting on a spring-biassed lever 43 fast with a shaft 22 carrying the flap.
Patent GB-1092647-A (GB)
Title: Improvements in and relating to lifting devices for compressor valves
IPC: F04B49/24
Filed: 1965-11-22
Abstract: 1,092,647. Compressors. HOERBIGER VENTILWERKE A. G. Nov. 22, 1965 [Nov. 27, 1964], No. 49584/65. Heading F1N. A device for holding open the suction valve of a compressor especially during idling periods comprises a hub 1 and at least two concentric spaced apart rings 2, 3 provided with axially extending prongs 4 for engaging the suction valve and connected to the hub by radial ribs 5 and to each other by shorter radial ribs 6. The full length ribs 5 may be integral with the hub 1. The hub, rings and ribs are connected to each other by welding or riveting.
Patent GB-1021970-A (GB)
Title: Method of fabricating semiconductor devices
IPC: H01L21/00
Filed: 1964-12-08
Abstract: 1,021,970. Semi-conductor devices. RADIO CORPORATION OF AMERICA. Dec. 8, 1964 [Dec. 30, 1963], No. 49970/64. Heading H1K. In the manufacture of a solar cell or other device containing a PN junction, a body of A III B y semi-conductor material is treated in a solution of a strong oxidizing agent containing a transition metal element before the PN junction is formed. The oxidizing agent is preferably selected from the group consisting of chromic oxide, osmium tetroxide, ceric sulphate, and the permanganates and dichromates of the alkali metals. In the example given, N-type gallium arsenide is treated in an aqueous solution of chromium trioxide before zinc or cadmium is diffused in.
Patent GB-1496590-A (GB)
Title: Sputtered dielectric thin films
IPC: C23C14/06
Filed: 1975-12-05
Abstract: 1496590 Sputtering Nb or Ta in O 2  and N 2  BELL-NORTHERN RESEARCH Ltd 5 Dec 1975 [6 Dec 1974] 50078/75 Heading C7F [Also in Division G2] A chamber is evacuated, O 2  and N 2  are separately fed into the chamber, the flows being adjusted to give a predetermined pressure and O 2 : N 2  ratio, a target of Nb or Ta is sputtered in the resulting atmosphere on to a substrate, and during sputtering the relative flows of O 2  and N 2  are varied as necessary to give predetermined variation in the gas ratio, which in turn varies the ratio of O 2  :N 2  included in the deposited film. Graphs are given relating refractive index and dielectric properties to the gas ratio; variation of this may be continuous or step-wise so that the properties of the deposit change accordingly. A substrate, e.g. of glass, is mounted on a rotating holder above an apertured anode, the cathode of Nb or Ta being aligned with the aperture; separate feed lines are provided for N 2  and O 2 , and a bleed line to a mass spectrometer permits sampling of the gas in the chamber to monitor O 2 :N 2  ratio variations.
Patent GB-1474540-A (GB)
Title: Supplying fuel to the cylinders of an internal combustion engine  particularly for starting
IPC: F02N19/00
Filed: 1974-11-19
Abstract: 1474540 Starting; supplying partially oxidized fuel to an internal combustion engine TOYOTA JIDOSHA KOGYO KK 19 Nov 1974 [10 July 1974] 50123/74 Headings F1B and F1K Apparatus for supplying partially oxidized fuel to an internal combustion engine 1 includes a fuel reformer assembly 5 comprising a heater 6 and a catalyst inserted in a fuel supply pipe leading to a carburetter 21 of the engine. The engine drives an air pump 3 which supplies air to the reformer 5 through a pipe 13 a fuel pump 16 draws fuel from a tank 14 and supplies it through a pipe 15. The fuel is ejected through a nozzle, (not shown), into the air pipe 13. The resulting mixture of fuel and air passes through an inlet 7 into the reformer 5. The fuel is reformed through partial oxidation and the mixture of oxidation products thus produced passes through a pipe 20 to the engine carburetter 21. As shown, the reformer 5 is surrounded by a casing and exhaust gas is supplied to the space 9 under control of valves V 1  V 2  V 3 . The invention is applicable particularly to assist starting of the engine but can also be used in the normal running of the engine.
Patent GB-1096525-A (GB)
Title: Improvements in or relating to enameling-grade steel and materials and methods used in its production
IPC: B32B15/00
Filed: 1964-12-14
Abstract: A rimmed steel ingot, especially suitable for conversion into enamelling grade steel, has a thick core and a thin rim, the former being enriched with respect to the latter with one or more elements (e.g. Cr and/or Mn) to restrict the migration of carbon from core to rim, the difference in amount of alloying elements between the core and the rim (there being at least a trace of them in the rim) being at least 0.02% in respect of Ti and V, at least 0.003% in respect of Al and preferably at least 0.05% in respect of Cr and Mn.  The alloying elements (some of which also restric the migration of nitrogen) are preferably added to the still molten core of a melt which has been poured and allowed to stand (e.g. 3-10 mins.).  The ingots may be worked to form sheet and heat-treated in a conventional manner.
Patent GB-1453856-A (GB)
Title: Methincyanine dyes
IPC: G03C1/16
Filed: 1973-11-02
Abstract: 1453856 Methincyanine dyes CIBA-GEIGY AG 3 Dec 1974 [2 Nov 1973] 50930/73 Heading C4P The invention comprises a methincyanine dye of the general formula  wherein R 1  is a lower alkoxy group, R 2  and R 3  are each a hydrogen atom or a lower alkyl group or a lower alkoxy group, R 4  and R 7  are each a lower alkyl group or a substituted lower alkyl group, R 5  and R 6  are each a hydrogen, chlorine or bromino atom or a lower alkyl or lower alkoxy group, X is an anion and p is 1 when the dye has a betaine-like structure caused by the presence of a sulphonic acid group in either of the radicals R 4  or R 7  and is 2 when the dye has a non-betaine like molecular structure. Hydroxymethyl, carboxyethyl and sulphopropyl are examples of substituted alkyl groups. The dyes are prepared by reaction of the corresponding 2-methyl-naphthothiazolium and 2-alkylthiobenzoselenazolium quaternary compounds or by reacting the corresponding 2 - alkylthio - napththothiazolium and 2- methylbenzoselenazolium salts. The 2-methylnaphthothiazole bases are prepared as described in Specification 1,391,792.
Patent GB-1354060-A (GB)
Title: Power transmission mechanism
IPC: F16H41/30
Filed: 1972-11-06
Abstract: 1354060 Change-speed control FORD MOTOR CO Ltd 6 Nov 1972 [12 Nov 1971] 51018/72 Heading F2D In a torque-converter-driven automatic transmission on a motor-vehicle, having ratioestablishing clutches and brakes selectively operated by fluid pressure controlled by fluidpressure signals responsive to output speed and input torque, the torque signal is derived mechanically from the torsional deflection of an inner shaft 56 splined at its front end to the torque-converter turbine (Fig. 1A, not shown) and transmitting converter torque to a transmission input member 66, such deflection causing relative circumferential movement between the input member 66 and a disc 72 secured to a sleeve 54 surrounding the torsion shaft 56 and also splined to the turbine at its forward end. The torque signal appears as a torque-regulated fluid pressure in the delivery passage 112 of a throttle valve 88, mounted tangentially in the input member 66 and loaded, in opposition to feed-back pressure 112, 114, by a spring 90 adjustably compressed by a screw-abutment 104 in a member 92 slidable tangentially in the input member 66 and having rack teeth meshing teeth 100 on the turbine-connected disc 72, whereby the torque-induced circumferential deflection between members 66 and 72 varies the compression of the spring 90 and hence causes the valve 88 to deliver a torque-regulated pressure at 112. A similar diametrically opposite valve 122 supplies kickdown pressure to a line 120 at full throttle torque. An input-driven pump supplies line pressure to the valve feed lines 116, 118. Lugs 142 on the input member 66 engage with lost-motion openings 140 in the turbine-connected disc 72 to limit torque-yield of the shaft 56. The transmission input member 66 forms the input of two clutches 68, 144, selectively driving elements of the gear in the usual manner. Clutch 144 is a high speed clutch and an intermediate brake 146 acts on its output shell.
Patent GB-1530147-A (GB)
Title: Junction box in a cooled high voltage cable installation
IPC: H01B7/42
Filed: 1975-12-12
Abstract: 1530147 Power cable junction box SIEMENS AG 12 Dec 1975 [17 Oct 1978] 51122/75 Headings H2E and H2C A junction box assembly for use in a cable installation in which the cable is housed in a pipe 3 containing a coolant has a by-pass arrangement 7. A branched pipe made of two parts 5, 6 telescopically connected to facilitate initial installation and subsequently welded together, is used at each end to connect the junction box to the pipe system, the cable passing through the straight branch via a seal 14, into the junction box via seal 13, the coolant passing through a by-pass pipe 7 connected between the branch arms. The bypass may have a stop valve 71, filling and venting valves 72, 73, and pressure or flow meters 74. Resilient connections are made between the walls 4 of the junction box assembly housing to provide for thermal expansion. The housing 10 is in two parts separated by insulating bush 11. Metal sheath 17 of cable 2 is electrically connected via sealing bush 13 to the casing 10, insulating bushes 15 being used between flange 62 and casing 10.
Patent GB-1500870-A (GB)
Title: Alloy steel
IPC: C22C38/46
Filed: 1976-12-08
Abstract: 1500870 Steel TSENTRALYN N I INST TEKHNOLOGII MASHINOSTROENIA and IZHOR ZAVOD I A A ZHDANOVA 8 Dec 1976 [8 Dec 1975] 51302/76 Heading C7A A steel alloy, used in steam generators and other pressure vessels used in nuclear power stations, with a high hardenability, high impact strength and good weldability, contains. C 0À08 -0À11 Mu 0À6 -1À4 Mo 0À35 -0À6 Al 0À02 -0À07 Sc 0À17 -0À37 Ml 1À7 -2À7 V 0À03 -0À07 N 0À005-0À012 Fe Bal, with Cr 0À3 max., Cu 0À2 max., S 0À02 max. and P 0À018 max. impurities. The steel is smelted in a conventional manner.
Patent GB-1487460-A (GB)
Title: Reversible window construction
IPC: E05D15/44
Filed: 1975-12-17
Abstract: 1487460 Reversible window L N AUSTNES 17 Dec 1975 [8 Jan 1975] 51549/75 Heading E1J A reversible window comprises a main frame 10 with trackways 15 in the jambs, a wing frame 11 with a pivot 14 slidable in the trackway, an arm 16 pivotably connected to the middle 18, 22 of the wing frame and at 19 to a slider in the trackway and a support arm 17 pivotably connected to the middle of the main frame 20, 23 and to the middle 21 of the arm 16. The window can pivot to a ventilating position or reverse for cleaning.
Patent GB-1310592-A (GB)
Title: Digital-to-analog converters
IPC: H03M1/06
Filed: 1970-10-31
Abstract: 1310592 Digital/analog converters ANALOG DEVICES Inc 23 March 1970 [24 March 1969] 51867/72 Divided out of 1310591 Heading G4H The description is identical to that of Specification 1310591 but the claims are directed to a digital/analog converter including circuitry for maintaining the current flow through switching transistors in the converter constant despite changes in ambient temperature.
Patent GB-1386843-A (GB)
Title: Cultivators
IPC: A01B61/02
Filed: 1972-03-07
Abstract: 1386843 Soil cultivators C VAN DER LELY NV 7 March 1972 [12 March 1971] 51986/73 Divided out of 1386841 Heading A1B The subject matter is the same as that disclosed in Specification 1386841 with respect to the second embodiment and the claims relate to the exchangeable pinions which are located at the top of the transmission mechanism and via which an extension of the upright shaft of one of the soil working members is driven. Reference has been directed by the comptroller to Specifications 1226679, 1266432 and 1277679
Patent GB-1098047-A (GB)
Title: Improvements relating to polishing
Inventor: WEAVER LESLIE FRANK
IPC: B24B41/06
Filed: 1965-12-09
Abstract: 1,098,047. Abrading. HARMAN BROS. Ltd. Dec. 8, 1966 [Dec. 9, 1965], No. 52187/65. Heading B3D: Apparatus for polishing articles 22 having an external surface which is of substantially circular cross-section comprises a rotatable polisher 11 adapted to be driven, a support 12 for an article which permits the article to freely rotate about an axis angled with respect to the axis of rotation of the polisher whereby, during polishing, the polisher rotates the articles, the support being mounted on a bed 10 relatively movable with respect to the polisher. The bed 10 is reciprocable on slides beneath the mop and the bed and mop are continuously reciprocated in a direction parallel to the axis of the mop. A plurality of supports 12 are mounted on the bed, and each support has a stub axle rotatably supporting a carrier on which a core carrying the article is mounted. The axes of the axles are preferably inclined at 20 degrees to the direction of movement of the bed. During polishing, the rotation of the mop rotates the articles and also acts to retain the articles on the supports. The reciprocation of the mop and bed are out of phase with one another. The articles may be conical or frusto-conical, the axes of the supports then being inclined to the bed.
Patent GB-1528355-A (GB)
Title: Cyclopropane derivatives and compositions containing them
IPC: A01N53/06
Filed: 1974-12-03
Abstract: 1528355 Cyclopropane derivatives SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 1 Dec 1975 [3 Dec 1974] 52224/74 Addition to 1437987 Heading C2C Cyclopropane derivatives of the general formula wherein R<SP>1</SP> and R<SP>2</SP> each represents a halogen atom; R<SP>3</SP> represents a hydrogen atom or a cyano group; R<SP>4</SP> represents a phenyl group optionally substituted by a phenoxy group; and n is an integer from 2 to 5 are prepared by reacting a compound of the formula with a compound of formula wherein of the groups X and Y, one represents a halogen atom and the other represents a hydroxy group; preferably one of the X and Y represents a chlorine atom and the other a hydroxy group, and the reaction is carried out in the presence of a hydrogen chloride acceptor. Examples describe the preparation of alphacyano - 3 - phenoxybenzyl - 2 - (2,2 - dichlorovinyl) - 3 - spirobutane - cyclopropane carboxylate and 3 - phenoxybenzyl - 2 - (2,2- dichlorovinyl) - 3 - spirobutane - cyclopropane- 1-carboxylate. The compounds have pesticidal properties.
Patent GB-1345066-A (GB)
IPC: H04L25/03
Filed: 1971-11-10
Abstract: 1345066 Digital transmission; clock pulse recovery ROCKWELL INTERNATIONAL CORP 10 Nov 1971 [23 Dec 1970] 52281/71 Heading H4P A clock pulse recovery system comprises a transfer sal equalizer having in one embodiment main and subsidiary taps each having gain adjusting means, e.g. an attenuator feeding into a summation circuit which adjusts the division ratio of a frequency divider so frequency and phase of the divider output is adjusted to receive the signal. The frequency divider may have a fixed portion and an adjustable portion which may comprise an add/delete circuit controlled by the sign of the difference between two taps or sets of taps, i.e. the difference between the aggregate gain of taps on one side of the main tap, to the aggregate gain of the remainder on the other side. When baud timing is approximately correct, the control signal level lies approximately between two threshold levels hence the divider divides by n. When timing is late the control signal falls below the lower threshold and the frequency divider may divide by a factor of n-1. The divider may be advantageously a counter. The system may be used on signals having a strong intersymbol interference. The delay line (10), Fig. 1 (not shown), has a centre tap (go) and taps on either side feeding into a summation device (12). In summation circuit 30, Fig. 3, which has no main tap, signals on terminals 34, 35 are subtracted from those on terminals 33, 36 which controls through a threshold level detector 31 the extent of frequency division, i.e. by n, n + 1, or n - 1 in a circuit 32 which is preferably a counter, the output from which is further divided at 24 to baud rate. In Fig. 5 (not shown) multiple pulses are added or deleted in a circuit (53) the number being dependent on the sign and direction of a control signal. In an alternative arrangement (Fig. 6, not shown) the control signal is converted into analogue form controlling the phase of a modulator (61).
Patent GB-1127169-A (GB)
Title: Folding chairs
Inventor: MUMFORD JOHN LAWRENCE
IPC: A47C4/46
Filed: 1966-11-23
Abstract: 1,127,169. Folding chairs. D. C. PERFECT Ltd. 23 Nov., 1966, No. 52481/66. Heading A4J. A folding chair comprises back legs 2, 4 hinged together by a pin (16) and hinged at their ends to the upper ends of back members 10 and to the ends of side rails 6, arms 12 hinged to the back members 10 and connected by releasable pin and bush connectors to the upper ends of the front legs 8, and a strut 14 made in two portions 15 hinged together by a hinge 23, the free ends of the strut being pivoted by pins 21 to the front legs. The strut hinge comprises two sleeves (20, 24, Figs. 5, 6) connected together by conventional hinge members 23. Twisting of the portions 15 is prevented by a pin (26) and socket (28) connection between their abutting ends. Quarter circular projections 30 on the ends of the portions 15 engage the front legs 8 and prevent the upper ends of the front legs from moving towards each other under the weight of a seated person. A plastic seat 31 has rings 32 threaded by the back members 10 and the front legs 8 and the rings are prevented from slipping down by pegs 34 adapted to engage a series of sockets in each back member or front leg. The hinges 18 connecting the frame members are L-shaped plates (40, Fig. 7). One leg (42) of each hinge is secured in one end of a frame member and the other leg (46) seats in a slot (48) in the other frame member and is hinged thereto by a pin (50) traversing the slot.